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Finding the Fourth Proportional to 235,632.60, 353,621.70 and 156,720.60

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Solution

The fourth proportional to 235,632.60, 353,621.70 and 156,720.60 is: 235,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,632.60 : 353,621.70 = 156,720.60 : x
  2. Step 2: Convert to fraction form
    235,632.60/353,621.70 = 156,720.60/x
  3. Step 3: Cross multiply
    235,632.60x = 353,621.70 × 156,720.60
  4. Step 4: Simplify right side
    235,632.60x = 55,419,804,997.02
  5. Step 5: Solve for x
    x = 55,419,804,997.02/235,632.60
  6. Step 6: Final answer
    x = 235,195.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.